G. EUNICEA. 
219 
generally branchy ; and their|b ranches are dispersed 
and cylindrical. In the papillous risings, however, 
there is a considerable difference ; for some of them 
are short, and some in the form of pyramids pressed 
down, whilst others are seen of great length and with 
a rounded summit ; sometimes they have a smooth 
surface, and at other times it is prickly. 
Their colour is the same as that of the Plexauras, 
which is a reddish-brown fawn, of a fainter or deeper 
hue ; it varies less than in the Gorgonias, and becomes 
white by exposure to light and air, and the more ra- 
pidly in proportion as the tentacula of the polypi are 
more extended. 
These Polypidoms are found in that part of the 
ocean situated between the Tropics, extending but 
little into the temperate seas ; they are not scarce, and 
are to be met with in most of the collections. 
ANTIPATHIAN. 
1. Eunicea antipathes. Polypi very large, on a 
thick brown rind; the axe compressed, and almost 
flat in the branches. 
Mediterranean and Indian seas. 
PAPILLOUS. 
2. Eunicea microthela. Branching, and almost pin- 
nated ; branches curved ; papillae conical, and but 
slightly projecting ; rind friable and cretaceous ; colour, 
greenish fawn ; height from six to eight centimetres. 
FILE-FORMED. 
3. Eunicea limiformis . Branching or dichotomous ; 
papillae conical, and from one to two millimetres long ; 
